
/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 malin
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.malin.rxjava.utils;

import android.app.Activity;
import android.util.DisplayMetrics;

/**
 * 类描述:手机设备的信息
 * 创建人:malin.myemail@gmail.com
 * 创建时间:15-11-10.下午3:26
 * 备注:
 * 参考项目:Android-Universal-Image-Loader
 */
public class DeviceInfo {

    public static int screenWidthForPortrait;   // 屏幕宽度
    public static int screenHeightForPortrait;  // 屏幕高度
    public static float mDensity;
    public static int mDensityDpi;


    private volatile static DeviceInfo instance;

    /**
     * Returns singleton class instance
     */
    public static DeviceInfo getInstance() {
        if (instance == null) {
            synchronized (DeviceInfo.class) {
                if (instance == null) {
                    instance = new DeviceInfo();
                }
            }
        }
        return instance;
    }

    private DeviceInfo() {

    }


    /**
     * init get device information
     *
     * @param activity
     */
    public void initializeScreenInfo(Activity activity) {
        DisplayMetrics metric = new DisplayMetrics();
        activity.getWindowManager().getDefaultDisplay().getMetrics(metric);
        mDensity = metric.density;
        mDensityDpi = metric.densityDpi;
        if (metric.heightPixels >= metric.widthPixels) {
            screenWidthForPortrait = metric.widthPixels;
            screenHeightForPortrait = metric.heightPixels;
        } else {
            screenWidthForPortrait = metric.heightPixels;
            screenHeightForPortrait = metric.widthPixels;
        }
    }
}
